CN219058259U - Special lifting appliance for horizontal assembly test of shield segment - Google Patents
Special lifting appliance for horizontal assembly test of shield segment Download PDFInfo
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- CN219058259U CN219058259U CN202223278423.9U CN202223278423U CN219058259U CN 219058259 U CN219058259 U CN 219058259U CN 202223278423 U CN202223278423 U CN 202223278423U CN 219058259 U CN219058259 U CN 219058259U
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Abstract
A special lifting appliance for a horizontal assembly test of shield segments comprises a horizontal beam, a chain block and a special fixture; the upper part of the horizontal beam is provided with a lifting ring, the lower part of the horizontal beam is provided with a lifting lug, the lifting ring is hung on a main hook of crane equipment, a through hole of the lifting lug is connected with an upper hook of a chain block, and a lower hook of the chain block is connected with a special fixture; the special fixture includes pivot, bolt hole baffle, back of the body cambered surface baffle, and special fixture front end installation pivot, and the bolt hole baffle passes through pivot and back of the body cambered surface baffle to be articulated, and back of the body cambered surface baffle passes through the bolt to be fixed with the bolt hole baffle, and special fixture passes section of jurisdiction side bolt hole and is fixed with the section of jurisdiction through the bolt. The special lifting appliance has the advantages of uniform stress, stable lifting performance and high safety coefficient, can effectively reduce the shaking and colliding damage probability of the pipe piece in the assembly process, is suitable for the pipe pieces with different diameters and types, is convenient to use, and can effectively improve the horizontal assembly accuracy and efficiency of the pipe piece.
Description
Technical field:
the utility model belongs to the technical field of engineering machinery lifting, and relates to a novel lifting appliance, in particular to a special lifting appliance for a horizontal assembly test of shield segments.
The background technology is as follows:
the subway construction mostly adopts shield construction, and a key part of the shield construction is a shield segment. In the shield segment production process, recommended national standards require that horizontal assembly tests are required for each production of a certain number of rings of the shield segment, and whether the inner diameter, the outer diameter and the gaps of the ring longitudinal joints of the shield segment after ring formation meet design requirements is detected. In the prior art, most of the segments are assembled horizontally by adopting a mode of directly hoisting the segments by a vertical clamp, hoisting points are few in the assembling process, the safety coefficient is low, the shaking amplitude of the segments is large, and the adjacent segments are easy to collide with, so that the quality of the segment entity is damaged.
The utility model comprises the following steps:
the utility model aims to solve the problems, and provides a novel lifting appliance which has stable lifting performance, can reduce the probability of segment collision damage, is suitable for segments with different diameters and types, and can effectively improve the horizontal assembly accuracy and efficiency of the segments.
The utility model adopts the following technical scheme to realize the aim:
the utility model provides a special lifting appliance for a horizontal assembly test of shield segments, which comprises a horizontal beam, a chain block and a special fixture; the upper part of the horizontal beam is provided with a lifting ring, the lower part of the horizontal beam is provided with a lifting lug, the lifting ring is hung on a main hook of crane equipment, a through hole of the lifting lug is connected with an upper hook of a chain block, and a lower hook of the chain block is connected with a special fixture; the special fixture includes nut, pivot, bolt hole baffle, back of the body cambered surface baffle, and special fixture front end installation pivot, and the bolt hole baffle passes through pivot and back of the body cambered surface baffle to be articulated, and back of the body cambered surface baffle passes through the bolt to be fixed with the bolt hole baffle, and special fixture passes section of jurisdiction side bolt hole and is fixed with the section of jurisdiction through the bolt.
The lifting ring is welded at the middle position of the upper part of the horizontal beam, the three lifting lugs are uniformly welded at the lower part of the horizontal beam, and the three lifting lugs are welded at the left end, the right end and the middle of the lower part of the horizontal beam.
The horizontal beam is formed by welding steel plates and I-steel.
The back cambered surface baffle on be provided with baffle, bolt hole, hanging hole, pivot hole, bolt hole baffle one end is provided with the bolt hole, the other end is provided with the pivot hole.
The rotating shaft penetrates through the rotating shaft hole on the back cambered surface baffle plate and the rotating shaft hole of the bolt hole baffle plate.
The bolt passes through the bolt hole on the back cambered surface baffle plate and the bolt hole of the bolt hole baffle plate.
The hanging hole on the back arc surface baffle plate is hung on the lower hook of the chain block.
The bolt is a straight bolt.
And a flexible rubber plate gasket is fixedly arranged at the contact part of the back cambered surface baffle plate and the bolt hole baffle plate of the special clamp and the duct piece.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model has strong universality, the positions of the lifting lugs on the horizontal beam can be welded according to the bolt hole positions of the duct pieces, and the utility model is suitable for duct pieces with different diameters; the hand chain block can adjust the inclination angle during assembly according to the design wedge-shaped quantity of the duct piece; the bolts on the special fixture are straight bolts, are suitable for the segment of the straight bolt sleeve, and can be replaced by bent bolts according to the segment type.
2. By adopting the utility model to hoist, the stress is uniform, the stability is strong, the lifting lugs at the two ends and the lifting lug at the center are oppositely welded and connected with the chain block, the chain block is connected with the special fixture, the back cambered surface baffle plate and the bolt hole baffle plate of the special fixture are clamped and fixedly attached to the inner side and the outer side of the pipe piece, and the shaking and collision damage of the pipe piece in the assembling process is reduced.
3. The utility model has the advantages of multiple hoisting points, high safety coefficient and special clamps for all the bolt holes on the side edges of the duct pieces.
4. The utility model has convenient use, and after the hoisting is finished, the nut is unscrewed to draw out the bolt, and the special clamp for direct lifting is automatically separated from the duct piece through the rotating shaft.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the present utility model in use;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic view of the structure of the special fixture of the present utility model;
FIG. 5 is a side view of FIG. 4;
fig. 6 is a top view of fig. 4.
Reference numerals in the drawings:
1-horizontal beam, 2-lifting lug, 3-chain block, 4-special fixture, 5-bolt, 6-section of jurisdiction.
4.1-nuts, 4.2-rotating shafts, 4.3-bolt hole baffles and 4.4-back cambered surface baffles.
The specific embodiment is as follows:
the present utility model will be further described with reference to the following specific embodiments, which are intended to be illustrative of the principles of the present utility model and not in any way limiting, nor will the same or similar techniques be used in connection with the present utility model beyond the scope of the present utility model.
Referring to fig. 1-4, the utility model provides a special lifting appliance for a horizontal assembly test of shield segments, which comprises a horizontal beam 1, a chain block 3 and a special fixture 4. The horizontal beam 1 is formed by welding steel plates and I-steel, a lifting ring is welded at the middle position of the upper part of the horizontal beam 1, three lifting lugs 2 are uniformly welded at the lower part of the horizontal beam 1, the three lifting lugs 2 are welded at the left end, the right end and the middle of the lower part of the horizontal beam 1, the lifting ring is hung on a main hook of crane equipment, a through hole of the lifting lug 2 is connected with an upper hook of the chain block 3, and a lower hook of the chain block 3 is connected with a special fixture 4. The special fixture 4 comprises a nut 4.1, a rotating shaft 4.2, a bolt hole baffle 4.3 and a back arc surface baffle 4.4, the rotating shaft 4.2 is arranged at the front end of the special fixture 4, a baffle, a bolt hole, a hanging hole and a rotating shaft hole are arranged on the back arc surface baffle 4.4, a bolt hole is arranged at one end of the bolt hole baffle 4.3, and a rotating shaft hole is arranged at the other end of the bolt hole baffle; the rotating shaft 4.2 passes through a rotating shaft hole on the back cambered surface baffle plate 4.4 and a rotating shaft hole of the bolt hole baffle plate 4.3, and the bolt hole baffle plate 4.3 is hinged with the back cambered surface baffle plate 4.4 through the rotating shaft 4.2; the bolts 5 penetrate through bolt holes in the back cambered surface baffle plate 4.4 and bolt holes in the bolt hole baffle plate 4.3, the back cambered surface baffle plate 4.4 is fixed with the bolt hole baffle plate 4.3 through the bolts 5, the nuts 4.1 fix the bolts 5, and during hoisting, the special fixture 4 penetrates through bolt holes in the side edges of the duct pieces 6 through the bolts 5 to be fixed with the duct pieces 6; the bolt 5 is a straight bolt; hanging holes on the back cambered surface baffle 4.4 are hung on the lower hooks of the chain block 3. The contact parts of the back cambered surface baffle 4.4 and the bolt hole baffle 4.3 of the special clamp 4 and the duct piece 6 are provided with fixed flexible rubber plate gaskets.
The special lifting tool has the working process as follows:
1) The special lifting appliance is first hung on the main hook using crane equipment meeting the rated load.
2) After the crane equipment moves to the storage position of the required hoisting duct piece 6, as shown in fig. 2 and 3, the duct piece 6 is hoisted by using the special hoisting tool, the lifting lug 2 arranged on the horizontal beam 1 is connected with the upper hook of the chain block 3, the lower hook of the chain block 3 is connected with the special fixture 4, the special fixture 4 passes through the bolt hole on the side edge of the duct piece 6 by the bolt 5, and after the bolt hole baffle 4.3 is fixed by using the nut 4.1 (only a single bolt hole is formed in the capping block and only the central special fixture 4 is used for hoisting), the back arc baffle 4.4 is automatically attached to the back arc surface of the duct piece 6, and the hoisting is carried out after the fixing is completed.
3) After the hoisting duct piece 6 reaches the splicing position, the duct piece 6 is slowly put down at a uniform speed, the inclined angle is adjusted by using the hand-pulling blocks 3 at the two ends according to the wedge-shaped quantity designed by the duct piece 6, after the adjustment is finished, the nuts 4.1 of the special clamps 4 at the two ends are firstly unscrewed, the bolts 5 are extracted, finally the nuts 4.1 of the middle special clamp 4 are unscrewed, the extraction bolts 5 are finally unscrewed, and the special clamp 4 is directly lifted to finish the separation from the duct piece 6 through the rotating shaft 4.2.
4) And the subsequent hoisting of the duct piece 6 is consistent with the whole process until the horizontal splicing test is completed.
Claims (9)
1. A special lifting device for shield constructs section of jurisdiction level and assembles experiment, characterized by: the special lifting appliance comprises a horizontal beam (1), a chain block (3) and a special clamp (4); the upper part of the horizontal beam (1) is provided with a lifting ring, the lower part of the horizontal beam is provided with a lifting lug (2), the lifting ring is hung on a main hook of crane equipment, a through hole of the lifting lug (2) is connected with an upper hook of the chain block (3), and a lower hook of the chain block (3) is connected with a special fixture (4); the special fixture (4) includes nut (4.1), pivot (4.2), bolt hole baffle (4.3), back of the body cambered surface baffle (4.4), pivot (4.2) are installed to special fixture (4) front end, bolt hole baffle (4.3) are articulated with back of the body cambered surface baffle (4.4) through pivot (4.2), back of the body cambered surface baffle (4.4) are fixed with bolt hole baffle (4.3) through bolt (5), nut (4.1) fixing bolt (5), special fixture (4) pass section of jurisdiction (6) side bolt hole and section of jurisdiction (6) through bolt (5) are fixed.
2. The special lifting appliance for horizontal assembly test of shield segments according to claim 1, which is characterized in that: the lifting ring is welded at the middle position of the upper part of the horizontal beam (1), three lifting lugs (2) are uniformly welded at the lower part of the horizontal beam, and the three lifting lugs (2) are welded at the left end, the right end and the middle of the lower part of the horizontal beam (1).
3. The special lifting appliance for horizontal assembly test of shield segments according to claim 1, which is characterized in that: the horizontal beam (1) is formed by welding steel plates and I-steel.
4. The special lifting appliance for horizontal assembly test of shield segments according to claim 1, which is characterized in that: the back arc surface baffle (4.4) on be provided with baffle, bolt hole, hanging hole, pivot hole, bolt hole baffle (4.3) one end is provided with the bolt hole, the other end is provided with the pivot hole.
5. The special lifting appliance for horizontal assembly test of shield segments according to claim 4, which is characterized in that: the rotating shaft (4.2) passes through a rotating shaft hole on the back cambered surface baffle plate (4.4) and a rotating shaft hole of the bolt hole baffle plate (4.3).
6. The special lifting appliance for horizontal assembly test of shield segments according to claim 4, which is characterized in that: the bolts (5) penetrate through bolt holes on the back arc surface baffle plate (4.4) and bolt holes of the bolt hole baffle plate (4.3).
7. The special lifting appliance for horizontal assembly test of shield segments according to claim 4, which is characterized in that: the hanging hole on the back arc baffle (4.4) is hung on the lower hook of the chain block (3).
8. The special lifting appliance for horizontal assembly test of shield segments according to claim 1, which is characterized in that: the bolt (5) is a straight bolt.
9. The special lifting appliance for horizontal assembly test of shield segments according to claim 1, which is characterized in that: a flexible rubber plate gasket is fixedly arranged at the contact part of the back arc surface baffle (4.4) and the bolt hole baffle (4.3) of the special clamp (4) and the duct piece (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223278423.9U CN219058259U (en) | 2022-12-07 | 2022-12-07 | Special lifting appliance for horizontal assembly test of shield segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223278423.9U CN219058259U (en) | 2022-12-07 | 2022-12-07 | Special lifting appliance for horizontal assembly test of shield segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219058259U true CN219058259U (en) | 2023-05-23 |
Family
ID=86376694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223278423.9U Active CN219058259U (en) | 2022-12-07 | 2022-12-07 | Special lifting appliance for horizontal assembly test of shield segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219058259U (en) |
-
2022
- 2022-12-07 CN CN202223278423.9U patent/CN219058259U/en active Active
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